Need help with carb

[1project2many]

It sounds like Virginian has carburetor overhaul experience. With years and years of service behind them, these carbs often suffer from vacuum leaks around the throttle shaft.

How the engine reacts is helpful in determining what's happening. If you step on the gas and the engine only stumbles for a short time then recovers, kind of a Wah....rrrrrRRR as it pauses then accelerates, the problem could be accelerator pump related. But if you open the throttle slightly and hold it and the engine runs poorly the entire time, the problem could be air leaks around the shaft. In this case opening the throttle further often restores proper operation, but allowing the throttle to close to a just off idle position will cause it to run poorly again.

If you can find an older carburetor kit they are usually very complete and give you most of the tools and instructions you need for a regular overhaul. If the carb body is leaking substantially around the shaft it will need to have bushings installed.

Good luck!